3D Regular Dodecahedron (mold)

The plan is to use the Moldela mini-mill to construct a mold from which I
could construct a Dodecahedron. The object consists of 2 parts: (1) the
faces composed of a plaster-like material and (2) the joints made of a flexible
poly-urethane.

This is one face. All twelve are identical. The shape would be
split into two sides of 6 faces. The joints on each of the 6 faces would
be glued while the joints holding the two halves together would be left free
allowing the two sides to be repeatably attached and detached.

Flexible joint.

Here is the final construction showing the joints fitting with the faces.